1. Ministry of Fisheries and Marine Resources: National Marine Information and Research Centre (NatMIRC); P.O. Box 912 Swakopmund Namibia
2. Department of Agriculture, Forestry and Fisheries: Branch Fisheries; Private Bag X2; Rogge Bay Cape Town 8012 South Africa
3. Marine Research Institute and Department of Biologial Sciences; University of Cape Town; Private Bag X3; Rondebosch 7701 South Africa
4. Institute of Marine Research; P.O. Box 1870 Nordnes N-5817 Bergen Norway